# This job leaves me perplexed; it's from 20 years ago

The die makers put a punch on a steel plate. They then put keys butted up
next to the punch and screwed them in. They took the punch off and wanted
me to cut keyseats into the plate. There were about 12 keys there. What i
s the best way to pick up these keys that is accurate? An edgefinder is ou
t of the question, because you cannot come in on a tangent since the keys,
their angles are all over the place. The only way that I can think of is t
o scribe a line around the keys, take the cutter, or better yet a pointer,
and point out the coordinates and program minus cutter radius. A couple of
thou out of whack should be OK. It's important that the one side of the k
ey butts up against the punch in order to keep punch location. Any other i
deas about how to pick up these keys? The die makers didn't like my work m
uch which pissed me off. I picked up using a pointer. They expected every
thing to be within a thou. A tight fitting key, and a tight location. Ve
ry tight. By eye.
Find the center of the hole, run a dial indicator along the key to find the angle and do the math.
up next to the punch and screwed them in. They took the punch off and want ed me to cut keyseats into the plate. There were about 12 keys there. Wha t is the best way to pick up these keys that is accurate? An edgefinder is out of the question, because you cannot come in on a tangent since the key s, their angles are all over the place. The only way that I can think of i s to scribe a line around the keys, take the cutter, or better yet a pointe r, and point out the coordinates and program minus cutter radius. A couple of thou out of whack should be OK. It's important that the one side of th e key butts up against the punch in order to keep punch location. Any othe r ideas about how to pick up these keys? The die makers didn't like my wor k much which pissed me off. I picked up using a pointer. They expected ev erything to be within a thou. A tight fitting key, and a tight location. Very tight. By eye.
I thought of doing that and trigging it out, but how to establish a locatio n? And I don't know what you mean by picking up center of the hole. I mus t be missing something here???
I think what he means is to pick up the punched hole/punch/orwhatever the die makers used for location. You can then step overto the side of the key and bump the shoe until the indicator has no runout. R. Wink
The die makers put a punch on a steel plate. They then put keys butted up next to the punch and screwed them in. They took the punch off and wanted me to cut keyseats into the plate. There were about 12 keys there. What is the best way to pick up these keys that is accurate? An edgefinder is out of the question, because you cannot come in on a tangent since the keys, their angles are all over the place.
********* do you have access to a computer with any kind of cad in it? You can draw the keys simple 4 sides, and give yourself a center of each key picking up using an edge finder at a known horizontal or vertical position.

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